CN105934705A - Liquid crystal dropping apparatus and method for manufacturing liquid crystal display device - Google Patents
Liquid crystal dropping apparatus and method for manufacturing liquid crystal display device Download PDFInfo
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- CN105934705A CN105934705A CN201480073628.2A CN201480073628A CN105934705A CN 105934705 A CN105934705 A CN 105934705A CN 201480073628 A CN201480073628 A CN 201480073628A CN 105934705 A CN105934705 A CN 105934705A
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- liquid crystal
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- syringe
- crystal material
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1339—Gaskets; Spacers; Sealing of cells
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1341—Filling or closing of cells
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1303—Apparatus specially adapted to the manufacture of LCDs
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133514—Colour filters
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- G02F1/13439—Electrodes characterised by their electrical, optical, physical properties; materials therefor; method of making
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136286—Wiring, e.g. gate line, drain line
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/1368—Active matrix addressed cells in which the switching element is a three-electrode device
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1341—Filling or closing of cells
- G02F1/13415—Drop filling process
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136286—Wiring, e.g. gate line, drain line
- G02F1/136295—Materials; Compositions; Manufacture processes
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
- G02F2201/12—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode
- G02F2201/121—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode common or background
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
- G02F2201/12—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode
- G02F2201/123—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode pixel
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Liquid Crystal (AREA)
Abstract
Provided are a liquid crystal dropping apparatus whereby liquid crystal can be accurately dropped in a state where a foreign substance is prevented from being generated, and a method for manufacturing a liquid crystal display device capable of manufacturing a liquid crystal display device whereby display defects such as a luminous-dot defect can be suppressed and display quality and yield become favorable. A liquid crystal dropping apparatus (1) comprises a liquid crystal bottle (2) accommodating a liquid crystal material (61), a three way valve (3), a liquid crystal outlet (4), a nozzle (5), and a drive means (7). The liquid crystal outlet (4) comprises a syringe (41) formed into a bottomed cylindrical shape, and a plunger (44) including a sliding portion (42) sliding in the syringe (41), and a rod-shaped support (43) for supporting the sliding portion (42). An operation controller (8) reciprocates the plunger (44) within the range of a reciprocating distance shorter than a stroke of dropping a liquid crystal before dropping the liquid crystal material (61) from the nozzle (5).
Description
Technical field
The present invention relates to liquid crystal dripping device and LCD device preparation method, this liquid crystal dripping device bag
Include the dress syringe of liquid crystal, in this syringe reciprocating plunger and drive the drive mechanism of this plunger,
And on the substrate that will be possessed to liquid crystal indicator under liquid crystal drop.
Background technology
In a display device, the feature that liquid crystal indicator has slimming, power consumption is low.Especially,
(the TFT base of the switch elements such as thin film transistor (TFT) (TFT) is included on each pixel including TFT substrate
Plate) liquid crystal indicator there is high-contrast and excellent response characteristic, performance is high, thus is applicable to electricity
Depending in the equipment such as receiver, personal computer.
The display floater of liquid crystal indicator has: by a pair clear glass faced by across predetermined distance
The substrate (TFT substrate, colored filter substrate) constituted and the liquid crystal layer being clamped between this substrate.
A pair substrate clips sealing adhesives and is bonded to each other, and liquid crystal layer is clamped between this pair substrate.
The method such as dual-in-line (DIP) formula, some glue (Dispenser) formula of can enumerating is used as at this
The method of filling liquid crystal between the substrate of display floater.In the above-mentioned methods, by sealing adhesives by institute
Female glass substrate of the female glass substrate and described colored filter substrate of stating TFT substrate bonds, right
By the substrate of the bonding that panel segmentation obtains, fill by liquid crystal from the opening portion sealing adhesive pattern,
Then, opening portion is sealed and obtain display floater.
In recent years, the method that the Method for bonding that drips is used as being filled in display floater liquid crystal is extensively applied.
The Method for bonding that drips refers to following method: do not arrange opening portion, by liquid crystal drop in sealing adhesive pattern
Under to female glass substrate close of the substrate (TFT substrate or colored filter substrate) before superposition
In the range of envelope adhesive pattern, then, at reduced pressure conditions by another substrate superposition and paste.According to
The described Method for bonding that drips, has the advantage of the productive temp time that can significantly shorten display panels.
The liquid crystal dripping device used in Method for bonding that drips includes filling the syringe of liquid crystal, past in syringe
The plunger of multiple motion and the drive mechanism of driving plunger, switch syringe and plunger accordingly with substrate,
By under liquid crystal drop on one substrate.
Compared with dual-in-line (DIP) mode, drip in Method for bonding described, owing to liquid crystal is being filled out
The backward substrate being charged in syringe drips, so there is the possibility that foreign matter is mixed in liquid crystal.
After switching syringe and plunger corresponding to substrate, until starting to drip liquid to next substrate
During crystalline substance, plunger is the most slack, therefore, and plastic plunger top portion and syringe inwall
Contact, this top ends adheres on this inwall sometimes.Plunger carries out action in such a state and drips
During liquid crystal, described top ends is big with the resistance of syringe inwall, therefore, and the synthetic resin quilt sometimes sticked together
Peeling off and produce airborne dust, foreign matter is mixed in display floater.
In the case of being mixed into foreign matter, there is the displays such as the generation visible fault of bright spot (bright spot fault)
The problem that fault and display quality and yields decline.
For such problem, Patent Document 1 discloses the invention of a kind of liquid crystal dripping device, should
Liquid crystal dripping device is storing the container of liquid crystal and by defeated to the liquid crystal between the nozzle on substrate under liquid crystal drop
Send on path, be provided with the filter mechanisms such as filter.
Fig. 7 is the schematic side elevation of the structure representing this liquid crystal dripping device 71.
Liquid crystal dripping device 71 includes: Liquid crystal bottle 2, triple valve 3, liquid crystal blowing unit 4, nozzle 5 and
Drive mechanism 7.Liquid crystal material 61 is accommodated in Liquid crystal bottle 2.The bottom of Liquid crystal bottle 2 is connected to conducting
On the one end of pipe 24, the other end of conduction pipe 24 is connected on triple valve 3.The one of conduction pipe 25
End is connected on triple valve 3, and the other end of conduction pipe 25 is connected in liquid crystal blowing unit 4.
Liquid crystal blowing unit 4 includes syringe 41 and the plunger 44 being arranged in syringe 41.About plunger
44, its diameter is roughly the same with the internal diameter of syringe 41, and includes: the cunning slided in syringe 41
Move portion 42 and in bar-shaped and that sliding part 42 is supported support 43.Drive mechanism 7 is according to rotation
Amount controls the extrusion capacity of sliding part 42, and such as, drive mechanism 7 is made up of stepper motor etc..About leading
Siphunculus 51, one end is connected on triple valve 3, and the other end is connected on nozzle 5.At conduction pipe 51
Mid portion, be provided with filter 28.
In the case of on the substrate that dripped to by liquid crystal material 61, open conduction pipe 24 He of triple valve 3
Conduction pipe 25 side, makes plunger 44 decline, and the liquid crystal of ormal weight is sent into syringe 41.It follows that
Open conduction pipe 25 and conduction pipe 51 side of triple valve 3, utilize drive mechanism 7 to make plunger 44 increase
And liquid crystal is sent into nozzle 5, make liquid crystal drip to substrate from nozzle 5.
Owing to liquid crystal dripping device 71 includes filter 28, therefore, it is mixed into liquid crystal material 61 at foreign matter
In the case of in, foreign matter is removed, it is suppressed that the generation of the display fault such as bright spot fault, and inhibits aobvious
Show the decline of quality and yields.
Prior art literature
Patent document
Patent document 1: Japanese Unexamined Patent Publication 2006-133251 publication
Summary of the invention
The problem that invention is to be solved
About the liquid crystal dripping device 71 of above-mentioned patent document 1, owing to including filter 28, therefore exist
The problem being caused precise decreasing of dripping by decompression.
The present invention makes in view of such problem, its object is to provide a kind of liquid crystal dripping device
And LCD device preparation method, described liquid crystal dripping device can be when suppressing foreign matter to produce
Make liquid crystal drip accurately, suppression bright spot can be produced by described LCD device preparation method
The display generation of fault such as fault and display quality and the preferable liquid crystal indicator of yields.
For solving the means of problem
Liquid crystal dripping device involved in the present invention includes filling the syringe of liquid crystal, reciprocal in this syringe
The plunger of motion and the drive mechanism of this plunger of driving, described liquid crystal dripping device will arrive under described liquid crystal drop
On substrate, described liquid crystal dripping device is characterised by having: will arrive described base under described liquid crystal drop
Before on plate, described drive mechanism is utilized to make described plunger with than the stroke in the case of the described liquid crystal that drips
The mechanism that short reciprocating motion length moves back and forth.
In the present invention, by making plunger move back and forth before the liquid crystal that drips, thus it is reliably suppressed
Following problem: the top ends of plastic plunger adheres on the inwall of syringe, is carrying out liquid crystal
Drip process in the case of, synthetic resin is stripped, and foreign matter is mixed in liquid crystal.
Therefore, it not that the liquid crystal dripping device 71 of patent document 1 utilizes filter 28 different to remove like that
Thing, it is not necessary to adding part, because of filter 28, decompression will not occur, precision of dripping is preferable.
Liquid crystal dripping device involved in the present invention is characterised by, described syringe is made up of glass, institute
The top ends stating plunger is made up of fluororesin.
In the present invention, inhibit top ends the sticking together to syringe inwall of plunger well.
A kind of LCD device preparation method, including using the syringe with dress liquid crystal, in this injection
The liquid crystal dripping device of the drive mechanism of reciprocating plunger and this plunger of driving in device, by under liquid crystal drop
On the surface of a substrate drip step and the part on the surface of described substrate bonds another
The step of substrate, described LCD device preparation method is characterised by, comprise the steps: with
In the case of one substrate have switched described syringe and described plunger accordingly, after the handover,
Before described step of dripping, described drive mechanism is utilized to make described plunger move back and forth.
In the present invention, in the case of have switched syringe and plunger accordingly with a substrate, it is included in
By under liquid crystal drop to before on a substrate, utilize the step that drive mechanism makes plunger move back and forth,
Thus it being reliably suppressed following problem: the top ends of plunger adheres on the inwall of syringe, is carrying out liquid
In the case of brilliant process of dripping, plunger is stripped, and foreign matter is mixed in liquid crystal.
Therefore, decompression will not occur as having filter, precision of dripping is preferable, and, it is suppressed that
Producing the display faults such as bright spot fault on liquid crystal indicator, display quality and yields are preferable.
The effect of invention
According to the liquid crystal dripping device of the present invention, will utilize before on substrate under liquid crystal drop owing to having
Drive mechanism makes the mechanism that plunger moves back and forth, and is therefore reliably suppressed following problem: the top of plunger
The synthetic resin that end is used adheres on the inwall of syringe, is carrying out the feelings processed of dripping of liquid crystal
Under condition, synthetic resin is stripped, and foreign matter is mixed in liquid crystal.Further, owing to there is no filter, Bu Huifa
Raw decompression, precision of therefore dripping is preferable.
According to the LCD device preparation method of the present invention, it is included in after have switched syringe and plunger,
By under liquid crystal drop to before on a substrate, utilize the step that drive mechanism makes plunger move back and forth,
Thus, the generation of suppression foreign matter, on liquid crystal indicator, there is the display faults such as bright spot fault in suppression,
And display quality and yields preferable.
Accompanying drawing explanation
Fig. 1 is the television reception representing and including liquid crystal indicator (display module) involved in the present invention
The schematic perspective view of machine (hereinafter referred to as " TV receiver ").
Fig. 2 is the schematic cross sectional views representing the display floater with display module.
Fig. 3 is the liquid crystal dripping device involved by embodiment of the present invention and the synoptic diagram of female glass substrate.
Fig. 4 is the schematic enlarged view of the structure representing liquid crystal dripping device.
Fig. 5 is the block diagram representing operation control portion.
Fig. 6 is to represent to utilize operation control portion to carry out the first driving and the flow process of the second process step driven
Figure.
Fig. 7 is the schematic side elevation of the structure of the liquid crystal dripping device involved by patent document 1.
Detailed description of the invention
Hereinafter, based on the accompanying drawing representing present embodiment, the present invention is specifically described.
Fig. 1 is to represent that the TV including liquid crystal indicator (display module 91) involved in the present invention connects
The schematic perspective view of receipts machine 90, Fig. 2 is the signal of the display floater 30 representing and having display module 91
Property sectional view.
TV receiver 90 includes: the laterally the longest display module 91 of show image, by antenna (not
Diagram) receive the tuner 94 of broadcast wave and to the decoder 95 that is decoded of broadcast wave after coding.
The broadcast wave that TV receiver 90 utilizes decoder 95 to be received tuner 94 is decoded, and based on
Decoded information by image display on display module 91.In the bottom of TV receiver 90, it is provided with
The pedestal 96 that TV receiver 90 is supported.
Display module 91 is incorporated in the fore shell 92 to configure before and after vertical posture and back cover with vertical posture
Among 93.Fore shell 92 is the rectangular frame of the circumference covering display module 91, and back cover 93 is in front side
Open rectangular tray shape.
Display module 91 includes: the casing of display floater 30, substantially box-shaped (following, not shown),
The light guide plate that is contained across reflective sheet on the bottom surface of casing, at cabinet sides in the face of the side of light guide plate
LED (Light Emitting Diode, the light emitting diode) substrate arranged and the table being arranged in light guide plate
The optical sheet (such as 3) in face.Display module 91 involved by present embodiment is side-light type, aobvious
Show that module 91 can also be underface formula, under such circumstances, including the diffuser plate replacing light guide plate.Also
Having, light source is not limited to LED.
As in figure 2 it is shown, display floater 30 has: by a pair clear glass faced by across predetermined distance
Constitute substrate 11,17 and be clamped in the liquid crystal layer 6 between this substrate 11,17.
There are grid wiring 12, and shape in the way of covering substrate 11 and grid wiring 12 on the substrate 11
Become dielectric film 13.Dielectric film 13 is formed with several pixel electrodes 14, to cover these pixel electricity
The mode of pole 14 is formed with transparent alignment films 16.Pixel electrode 14 is formed together with active matrix,
The grid wiring 12 of active matrix represents in fig. 2.By substrate 11, grid wiring 12, dielectric film 13
TFT substrate 10 is constituted with pixel electrode 14.
On substrate 17, it is sequentially laminated with colored filter 18, common electrode 19 and alignment films 20.By
Substrate 17, colored filter 18 and common electrode 19 constitute colored filter substrate 23.
Further, alignment films 16,20 bonds in the way of clamping liquid crystal layer 6, thus fixing substrate 11,
17, Polarizer 21,22 is arranged on the outside of substrate 11,17.
Fig. 3 is the liquid crystal dripping device 1 involved by embodiment of the present invention and the summary of female glass substrate 31
Figure, Fig. 4 is the schematic enlarged view of the structure representing liquid crystal dripping device 1.Liquid crystal drop in regulation
It is configured with platform 9 in lower region, on platform 9, is provided with containing 8 colored filter substrates 23
Female glass substrate 31.Above female glass substrate 31, it is provided with liquid crystal dripping device 1.At liquid crystal drop
In lower region, it it is atmospheric pressure environment.
Liquid crystal dripping device 1 includes: Liquid crystal bottle 2, triple valve 3, liquid crystal blowing unit 4, nozzle 5 and drive
Motivation structure 7.The bottom of Liquid crystal bottle 2 is tapered, and liquid crystal material 61 is accommodated in Liquid crystal bottle 2.Liquid crystal
The bottom of bottle 2 is connected on the one end of conduction pipe 24, and the other end of conduction pipe 24 is connected to three
On logical valve 3.The one end of conduction pipe 25 is connected on triple valve 3, and the other end of conduction pipe 25 is even
It is connected in liquid crystal blowing unit 4.
Such as, liquid crystal blowing unit 4 is made up of glass, including the syringe 41 in bottomed cylindrical and setting
Plunger 44 in syringe 41.Such as, plunger 44 is made up of fluororesin such as polytetrafluoroethylene (PTFE), and it is straight
Footpath is roughly the same with the internal diameter of syringe 41, and plunger 44 includes sliding part 42 and support 43, slides
Can slide in syringe 41 in portion 42, support 43 is connected on sliding part 42 in bar-shaped and one end
And the other end is connected in drive mechanism 7, sliding part 42 is supported by support 43.
The shower nozzle 26 that drips is constituted by Liquid crystal bottle 2, triple valve 3, liquid crystal blowing unit 4 and nozzle 5.
Drip shower nozzle 26 and drive mechanism 7 is configured to available travel mechanism 32 at female glass substrate 31
Upper movement.
Drive mechanism 7 controls the extrusion capacity of sliding part 42 (displacement) according to rotation amount, such as, drives
Motivation structure 7 is made up of stepper motor etc..
The one end of conduction pipe 51 is connected on triple valve 3, and the other end is connected on nozzle 5.About
Nozzle 5, is easier to drain liquid crystal droplet, the most such as preferably with polytetrafluoro owing to improving water-resistance
Ethene has carried out coating process.Formed on the top of nozzle 5 to make extrusion capacity according to plunger 44
The size of liquid crystal droplet most suitable, according to the proportion of liquid crystal material 61, viscosity, surface tension and with
The affinity of nozzle 5 or water-resistance devise nozzle diameter, and devise the internal diameter of syringe 41.
Prepare to drip respectively shower nozzle 26 for every kind of liquid crystal material 61.
Travel mechanism 32 makes to drip the liter that movement that shower nozzle 26 carries out, drive mechanism 7 make plunger 44 carry out
The folding of fall and triple valve 3 is controlled by operating control portion 8.
Fig. 5 is the block diagram representing operation control portion 8.
Operation control portion 8 is CPU (Central Processing Unit, central processing unit) 81, ROM
(Read Only Memory, read-only storage) 82, RAM (Random Access Memory, with
Machine accesses memory) 83, input/output interface (I/O) 84 and erasable nonvolatile memory 85 lead to
Cross shared bus to connect and formed.CPU81 the control program read (CP read) stored in ROM82 is gone out to
In RAM83, and perform control program.
Such as, nonvolatile memory 85 is by EEPROM (Electrically Erasable Programmable
Read Only Memory, Electrically Erasable Read Only Memory) or EPROM (Erasable
Programmable Read Only Memory, Erasable Programmable Read Only Memory EPROM) etc. constitute, in advance
Store the model with display floater 30, the liquid crystal material 61 of use and drip shower nozzle 26 and the amount of dripping
Condition of the dripping table etc. being associated etc. the condition of dripping.
On I/O84, connect and have travel mechanism 32, guidance panel 33, drive mechanism 7 and triple valve 3.
On guidance panel 33, it is provided with power switch, the activate switch of instruction operation beginning, indicates operation to stop
Switch only, instruction carry out the switch of weighing operation described later and instruction carry out described later second drive open
Close and wait the various switches operated by user.
The manufacture method of the display module 91 according to the present invention, in the case of manufacturing display floater 30,
First, such as in female glass substrate (not shown) 8 TFT substrate 10 of upper formation, such as at another
8 colored filter substrates 23 are formed on individual female glass substrate 31.It follows that use ultraviolet curing
Resin or ultraviolet curable resin and heat reactive resin, as the raw material of sealing adhesives, utilize some glue
Machine glues in the sealing of the image display area formation frame-shaped of female glass substrate 31 of colored filter substrate 23
Map interlinking case, drips in sealing adhesive pattern by the Method for bonding that drips by liquid crystal material 61, afterwards by TFT
Female glass substrate of substrate 10 is bonded on female glass substrate 31, makes sealing adhesives solidify.Then,
The TFT substrate 10 under tacky state and colored filter is cut out from 2 female glass substrates of bonding
Substrate 23, obtains display floater 30 by other various operations.
In the case of liquid crystal material 61 being dripped on described female glass substrate 31, first, based on behaviour
Make the control in control portion 8, travel mechanism 32 shower nozzle 26 that makes to drip move on female glass substrate 31
Assigned position on colored filter substrate 23.Then, conduction pipe 24 and the conducting of triple valve 3 are opened
Pipe 25 side, is made plunger 44 decline by drive mechanism 7, and the liquid crystal material 61 of ormal weight is sent into injection
In device 41.It follows that open conduction pipe 25 and conduction pipe 51 side of triple valve 3, by drive mechanism
7 make plunger 44 rise, and are delivered to by liquid crystal material 61 in nozzle 5, make liquid crystal material 61 from nozzle 5
Drip on colored filter substrate 23.To be dripped shower nozzle 26 by travel mechanism 32 in operation control portion 8
Move to several positions on colored filter substrate 23, liquid crystal material 61 is dripped.To each coloured silk
Colo(u)r filter substrate 23 comes again aforesaid operations.The operation this driving that carries out of control portion 8 is referred to as the
One drives.
Female glass substrate 31 is corresponding to the model of display module 91, as described above by each display mould
The model of block 91 switches condition of dripping.
Female glass substrate 31 at the display module 91 of same model that liquid crystal material 61 is dripped to continuously
In the case of on, liquid crystal material 61 is continually fed in syringe 41, and plunger 44 is with about 50mm
Stroke lift continuously, thus without produce sliding part 42 stick together problem.
In the case of the model of switching display module 91, the shower nozzle 26 that will drip unloads from drive mechanism 7
Under, the shower nozzle 26 that drips of next model is replaced with, and liquid crystal material 61.Then, in order to
It is confirmed whether normally to be dripped by liquid crystal material 61 in next model produces, carries out weighing liquid crystal material
The weighing operation of the amount of dripping of material 61.
After described model handover operation, until the process of dripping of liquid crystal material 61 starts, plunger
44 do not slide, and therefore produce above-mentioned sliding part 42 sticks together problem.In the present invention, in type
After number handover operation, until proceeding by the process of dripping of liquid crystal material 61 to produce next model
Before, operation control portion 8 carries out the second driving, make plunger 44 be shorter than the reciprocating motion of described stroke away from
Slide from (such as 0.1～0.2mm).
Hereinafter, the first driving and the second process driven that carry out operation control portion 8 illustrate.
Fig. 6 is to represent to operate the first driving and the flow process of the second process step driven that control portion 8 is carried out
Figure.
First, the CPU81 in operation control portion 8 judges whether have received the beginning of dripping of liquid crystal material 61
Instruction (S1).CPU81 is (S1: no (NO)) in the case of being judged as not receiving described instruction,
Repeat this judgement to process.
CPU81 is (S1: be (YES)) in the case of being judged as have received described instruction, carries out first
Drive (S2).CPU81 moves to each colored filter by travel mechanism 32 shower nozzle 26 that will drip
The assigned position of substrate 23, makes plunger 44 lift, and makes liquid crystal material 61 drip colorized optical filtering chip base
On plate 23.
CPU81 judges whether dripping operation terminates (S3).CPU81 is being judged as that dripping operation does not terminates
In the case of (S3: no (NO)), repeat this judgement process.
CPU81 is being judged as (S3: be (YES)) in the case of dripping operation terminates, it may be judged whether
Have received the instruction (S4) of model switching.CPU81 is being judged as not receiving the instruction of model switching
In the case of (S4: no (NO)), come back for the process of step S1.In the feelings not carrying out model switching
Under condition, owing to continuing the colored filter substrate 23 of same model is carried out the behaviour of dripping of liquid crystal material 61
Make, so, the sliding part 42 reciprocating motion in syringe 41 is persistently carried out, and will not produce and adhere to
Problem on syringe 41.
CPU81 in the case of the instruction being judged as have received model switching (S4: be (YES)), from
Nonvolatile memory 85 reads the condition table that drips, carries out the model handover operations (S5) such as weighing operation,
Judge whether model switching terminates (S6).CPU81 is in the case of being judged as that model switching is not over
(S6: no (NO)), repeats this judgement and processes.
CPU81 be judged as model switching terminate in the case of (S6: be (YES)), it may be judged whether
Have received the instruction (S7) of the second driving.CPU81 is being judged as not receiving the instruction of the second driving
In the case of (S7: no (NO)), repeat this judgement process.
CPU81, in the case of the instruction being judged as have received the second driving (S7: be (YES)), enters
Row second drives, and makes plunger 44 carry out with the reciprocating motion length being shorter than the stroke that drips of liquid crystal material 61
Slide (S8).
CPU81 judges whether have received stopping instruction (S9) of the second driving.CPU81 is being judged as not
In the case of having the stopping receiving the second driving to indicate (S9: no (NO)), repeat this judgement and process.
CPU81 in the case of the stopping instruction being judged as have received the second driving (S9: be (YES)),
Stopping the second driving, end processes.
On the colored filter substrate 23 of the model after have received switching of being dripped to by liquid crystal material 61
In the case of instruction, carry out the process of step S1, the step after repetition.
According to present embodiment, on colored filter substrate 23 that liquid crystal material 61 is dripped to before,
Plunger 44 is made to move back and forth by drive mechanism 7, therefore, it is possible to be reliably suppressed following problem: sliding
Dynamic portion 42 adheres on the inwall of syringe 41, in the case of the process of dripping carrying out liquid crystal material 61,
Sliding part 42 is stripped, and foreign matter is mixed in liquid crystal material 61.Especially, syringe 41 is made up of glass,
Plunger 44 is made up of fluororesin, so inhibiting sticking together of sliding part 42.Further, owing to there is no liquid crystal
In dripping device 71, such filter 28, will not occur decompression, and precision of dripping is preferable.
Therefore, it is suppressed that the display fault such as bright spot fault occurs on display module 91, and display quality and
Yields is preferable.
Embodiments disclosed herein is the most all exemplary, is understood not to limit
Property.The scope of the present invention is not only above-mentioned explanation, it is thus understood that include the right with patent application
Require all changes in the range of the claim of impartial scope and patent application.
Such as, in present embodiment, for liquid crystal material 61 is dripped on colored filter substrate 23
Situation be illustrated, but be not limited to this, it is also possible to TFT substrate of being dripped to by liquid crystal material 61
On 10.
And, liquid crystal indicator is not limited to the display module 91 of TV receiver 90.
Description of reference numerals
1 liquid crystal dripping device
2 Liquid crystal bottle
24,25 conduction pipe
26 drip shower nozzle
3 triple valves
4 liquid crystal blowing units
41 syringes
42 sliding parts
43 supports
44 plungers
5 nozzles
51 conduction pipes
6 liquid crystal layers
61 liquid crystal materials
10 TFT substrate
11,17 substrate
12 grid wirings
13 dielectric films
14 pixel electrodes
16,20 alignment films
18 colored filters
19 common electrodes
21,22 Polarizer
23 colored filter substrates
90 TV receivers
91 display modules
92 fore shells
93 back covers
94 tuners
95 decoders
96 pedestals
Claims (3)
1. a liquid crystal dripping device, including filling the syringe of liquid crystal material, back and forth transporting in this syringe
Dynamic plunger and the drive mechanism of this plunger of driving, described liquid crystal material is dripped by described liquid crystal dripping device
On substrate, described liquid crystal dripping device is characterised by having:
Before on the described substrate that dripped to by described liquid crystal material, described drive mechanism is utilized to make described post
Plug moves back and forth with the reciprocating motion length shorter than the stroke in the case of the described liquid crystal material that drips
Mechanism.
Liquid crystal dripping device the most according to claim 1, it is characterised in that
Described syringe is made up of glass,
The top ends of described plunger is made up of fluororesin.
3. a manufacture method for liquid crystal indicator, including:
Drip step, use liquid crystal dripping device, liquid crystal material is dripped on the surface of a substrate, described
Liquid crystal dripping device have fill the syringe of described liquid crystal material, in this syringe reciprocating plunger
With drive this plunger drive mechanism, and
A part on the surface of one substrate bonds the step of another substrate；
The manufacture method of described liquid crystal indicator is characterised by, comprises the steps:
In the case of have switched described syringe and described plunger accordingly with one substrate, cutting
After alternatively, described in drip before step, utilize described drive mechanism to make described plunger move back and forth.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2014/051318 WO2015111162A1 (en) | 2014-01-23 | 2014-01-23 | Liquid crystal dropping apparatus and method for manufacturing liquid crystal display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105934705A true CN105934705A (en) | 2016-09-07 |
| CN105934705B CN105934705B (en) | 2018-02-16 |
Family
ID=53680993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480073628.2A Active CN105934705B (en) | 2014-01-23 | 2014-01-23 | Liquid crystal dripping device, LCD device preparation method |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US9772524B2 (en) |
| JP (1) | JP5945081B2 (en) |
| CN (1) | CN105934705B (en) |
| WO (1) | WO2015111162A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017021241A (en) * | 2015-07-13 | 2017-01-26 | 株式会社ジャパンディスプレイ | Liquid crystal material processing apparatus and processing method, liquid crystal display panel manufacturing method, and liquid crystal display apparatus |
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| CN1769969A (en) * | 2004-11-03 | 2006-05-10 | 三星电子株式会社 | System and method for manufacturing a liquid crystal display device |
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| CN102236215A (en) * | 2010-04-30 | 2011-11-09 | Ap系统股份有限公司 | Droplet unit and substrate processing device |
| CN103372521A (en) * | 2012-04-20 | 2013-10-30 | Tdk株式会社 | Application head and droplet applying apparatus |
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| US2607342A (en) * | 1950-11-24 | 1952-08-19 | Martin S Abel | Syringe |
| US3150801A (en) * | 1960-09-06 | 1964-09-29 | Clark H Hamilton | Syringe |
| US4046287A (en) * | 1976-05-10 | 1977-09-06 | Graco Inc. | Automatic metering and dispensing system |
| CN100362399C (en) * | 2003-11-17 | 2008-01-16 | Lg.菲利浦Lcd株式会社 | Liquid crystal distributing method and device thereof |
| WO2005097359A1 (en) | 2004-04-09 | 2005-10-20 | Matsushita Electric Industrial Co., Ltd. | Viscous fluid application device |
| JP2006133251A (en) * | 2004-11-02 | 2006-05-25 | Nec Lcd Technologies Ltd | Method for manufacturing liquid crystal display panel and liquid crystal dropping device |
| US20060102877A1 (en) | 2004-11-03 | 2006-05-18 | Jin-Sung Kim | System and method for manufacturing a liquid crystal display device |
| JP2008284441A (en) * | 2007-05-16 | 2008-11-27 | Ulvac Japan Ltd | Liquid agent dripping device |
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2014
- 2014-01-23 CN CN201480073628.2A patent/CN105934705B/en active Active
- 2014-01-23 WO PCT/JP2014/051318 patent/WO2015111162A1/en active Application Filing
- 2014-01-23 JP JP2015558643A patent/JP5945081B2/en not_active Expired - Fee Related
- 2014-01-23 US US15/110,083 patent/US9772524B2/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1946487A (en) * | 2004-04-09 | 2007-04-11 | 松下电器产业株式会社 | Viscous fluid application method |
| CN1769969A (en) * | 2004-11-03 | 2006-05-10 | 三星电子株式会社 | System and method for manufacturing a liquid crystal display device |
| CN102006943A (en) * | 2008-02-21 | 2011-04-06 | 武藏工业株式会社 | Device and method for discharging liquid material |
| CN101937151A (en) * | 2009-06-29 | 2011-01-05 | Ap系统股份有限公司 | Injector for liquid crystal, and device and method for injecting liquid crystal by using the injector |
| CN102236215A (en) * | 2010-04-30 | 2011-11-09 | Ap系统股份有限公司 | Droplet unit and substrate processing device |
| CN103372521A (en) * | 2012-04-20 | 2013-10-30 | Tdk株式会社 | Application head and droplet applying apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105934705B (en) | 2018-02-16 |
| WO2015111162A1 (en) | 2015-07-30 |
| US9772524B2 (en) | 2017-09-26 |
| JP5945081B2 (en) | 2016-07-05 |
| US20160334655A1 (en) | 2016-11-17 |
| JPWO2015111162A1 (en) | 2017-03-23 |
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